Jay Foad 8ee5e19c87 [AMDGPU] Fix @llvm.amdgcn.cs.chain with SGPR args not provably uniform (#114232) ...

The correct behaviour is to insert a readfirstlane. SelectionDAG was
already doing this in some cases, but not in the general case for chain
calls. GlobalISel was already doing this for return values but not for
arguments.

2024-10-30 16:12:37 +00:00

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